
Maximum flow for supply hose? - Firehouse Forums
2008/01/25· If we use100'' of 3" hose with 2 1/2" couplings and limit ourselves to 250 psi. then max flow will be about 1500 gpm, but what we need to do this would be a 3,000 gpm engine (50% volume at 250 psi). One appliion of this might be for training, where …